The Flintstones in Viva Rock Vegas What It's About: "When the Great Gazoo arrives from another planet to study the mating habits of humans, he looks to Fred and Barney to steer the right course in this prequel to the animated series. The two meet and fall for Wilma and Betty respectively, but first they must get Wilma out from under her rich mother's claws and impending marriage to a Rockefeller before it's yabba-dabba-doo time!" Watch The Flintstones in Viva Rock Vegas on HBO Max here! More Kids' Movies That Feature Dinosaurs Dinosaur Island (on Tubi) The Land Before Time V: The Mysterious Island (on Tubi) The Land Before Time VI: The Secret of Saurus Rock (on Tubi) The Land Before Time VII: The Stone of Cold Fire (on Tubi) The Land Before Time IX: Journey to Big Water (on Tubi) The Land Before Time X: The Great Longneck Migration (on Tubi) The Land Before Time XI: Invasion of the Tinysauruses (on Tubi) The Land Before Time XII: The Great Day of the Flyers (on Tubi) The Land Before Time XIII: The Wisdom of Friends (on Tubi) The Land Before Time XIV: Journey of the Brave (on Tubi) Scooby-Doo! Legend of the Phantosaur (on Amazon Prime Video) Image Source: Everett Collection